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GROUNDWATER <br />TECHNOLOGY <br />Drilling Log <br />Monitoring Well MW-3 <br />Project Chevron - Tracy, Grant Line O wner Chevron LISA Products Company See Site 14aP <br />For Boring Location <br />Location 575 Grant Line Road, Tracy, CA Pro'. No 02070 0138 <br />Surface Elev Total Hole Depth 215 ft Diameter 8 in COMMENTS <br />Top of Casing Water Level Initial 11._a Static 7 09 ft <br />Screen: De LEL.— Length 15 ft Type/size Sch 40 PVC/0 020 in <br />Casing Dia 2 in Length 5 It Type SCh 40 PVC <br />FM Material 0 3 Sam" Rig/Core CME-55 Downhole/Sat Spoon <br />Drill Co SES, Inc method Hollow Stem Auoer/PID <br />Driller Tyke van Zand1 Log By Brian mcAloon Date 05/02/95 Permit 1 005901 <br />Checked By Ed Simonis License No RG41 4422 <br />_ Depth ( ft ) Well Completion PID (PPrh) Sample ID Blow Count/ X Recovery Graphic I Log 1USCS Class] \ Description \ <br />(Color, Texture, Structure) <br />Trace < 10%, Little IOX to 20%. Some 20% to 35%, And 35% to 50% <br />--2— <br />. ... <br />3 r <br />5 i <br />MW-3 6 <br />-6 5 <br />M w - 3 17 <br />-165 <br />E <br />H-3 it <br />-21 0 12 <br />-2—s1 Silty <br />T SI <br />Top soil over gravelly silty CLAY (5,45.50) very dark gray, damp, <br />hydrocarbon odor <br />CLAY (45,55) gray, wet, soft, hydrocarbon odor <br />T Static Water, 05/02/95 <br />Sandy silty CLAY (5,35,60) light brown, moist to wet, no <br />hydrocarbon odor <br />V Encountered Water, 05/02/95 (drillers call) <br />Silty CLAY (30,70) brown, wet, soft, plastic, no hydrocarbon odor <br />sang,/ silty CLAY (10,40 50) brown, wet, poor plasticity no <br />nydr °carbon odor <br />End of boring Installed monitoring well <br />-0 - <br />, - <br />-4- <br />. ., <br />- 6 - <br />- -, <br />8 - <br />. - <br />—10- <br />-12 - <br />. <br />-14-- <br />-16- <br />, <br />-18-- <br />-20- <br />. <br />-Z- <br />- <br /> <br />— = = _ — — — — <br />E--- <br />= <br />= <br />= <br />= _ = <br />= <br />= <br />= <br />= _ <br />= = — — <br />= <br />112 <br />130 <br />9 <br />1 <br />/ <br />CL <br />— <br />CL <br />-22- <br />_ <br />-24- , <br />, 1 <br />1 <br />1 <br />06 /2 9 /1995 ioniog-Tta 93 <br /> °age 1 of 1